Re: [boost] [thread] condition::try_wait() and thread::try_join()?

Subject: Re: [boost] [thread] condition::try_wait() and thread::try_join()?
From: vicente.botet (vicente.botet_at_[hidden])
Date: 2008-11-10 09:54:18

----- Original Message ----- 
From: "Anthony Williams" <anthony.ajw_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Monday, November 10, 2008 12:57 PM
Subject: Re: [boost] [thread] condition::try_wait() and thread::try_join()?

> 
> "vicente.botet" <vicente.botet_at_[hidden]> writes:
> 
>> I'm sure there you have a good rationale to don't have
>> condition::try_wait() or  thread::try_join() functions. Could you
>> share with us? Can these functions be emulated? If yes, why not adding
>> them?
> 
> What would try_wait do? A condition variable notify only applies to
> currently waiting threads. Since "try_wait" would be instantaneous, it
> would never be notified since you would never get a concurrent call to
> notify. You have timed_wait though, so you could try it out with a
> timeout of zero if you're so inclined.

Ok, I see.
 
> try_join is more sensible, and it might be worth adding it. 

I'm more interested on the try_join. Does the following do a try_join?

boost::thread th(fct);
th.timed_join(0);

Is this the more efficient way?

Thanks,

Vicente